SIMPSON — CONTRIBUTIONS To THE ,MOi.LUSCA (.)!• I'LORIIXA. 63 



Turbo castaneus Lam. West coast. Occasionally thrown up in 

 great numbers. N^/ 



Turbo crenulatus Gm. ? Received from Pensacola. 



Imperator caelatus Chem. A large worn shell was found at Key 

 West; one young shell was picked up at the Tortugas. 



Imperator caelatus, var. Cubensis Phil. Tortugas ; Key West. 



Imperator brevispina Lam. Florida Keys. 



Imperator tuber L. Tortugas; one young shell, somewhat worn. 



Imperator longispina Lam, Tortugas. 



Imperator americana Gm. Key West. Worn shells; Content 

 Key; Sand Key; Tortugas; very abundant at low tide, living on dead 

 coral. 



Livona pica Gm. Little Content Key; Key West. Dead shells. 



Troehus indusii Chem. Florida Keys. 



Trochus fasciatus L. Tortugas. Abundant; very variable. A 

 large form was found at Key West. 



Trochus tampaensis Con. West coast. I found this shell on the 

 mainland of Honduras, east coast. 



Margarita riisii Dunker. Tortugas. 



Stomatella pieta D'Orb. Tortugas. 



Fissurella fascicular is Lam. Key West. 



Fissurella fas data Pfr. Tortugas. 



Fissurella cancellata Sby. Tortugas. 



Fissurella listeri D'Orb. Key West ; Tortugas. 



Fissurella gemmulata Reeve. Tortugas. A large number of shells 

 of this lovely little species were collected at Garden Key. 



Fissurella .alternata Say. West coast; not common. Found more 

 abundantly at "The Rocks," Little Sarasota Pass, than elsewhere; 

 East coast, Cunningham. 



Fissurella nodosa Born. Tortugas. 



Fissurella barbadensis Gm. Tortugas; Key West. A few shells 

 of the rough variety. 



Fissurella barbadensis. Smooth variety. One worn shell at Gar- 

 den Key; Tortugas. 



Rimula frenulata Dall. Tortugas. One shell was broken in send- 

 ing to Mr. Dall for identification. He has since received this species 

 from Turtle Harbor, Florida, and also from North Carolina. 



Emarginula tumida Sby. Tortugas. 



Fmargi/iula octoradiata Gm. Tortugas. 



Emarginula octoradiata, form clausa D'Orb. Tortugas; Key West. 



Emarginula octoradiata, var. depressa Blainv. Tortugas. 



Emarginula emargiuata Blainv. Tortugas. 



Acmcea pu/icturata Lam. Tortugas; Key West. 



